Evidence experts

Chicago Tribune historical photo

A coroner and Major Goddard (Colonel Calvin Hooker Goddard) look over Thompson submachine guns on April 20, 1929. The guns were believed to have been used in the Clark Street St. Valentine's Day massacre. Goddard established that Tommy guns were used in the massacre and that they were not police Tommy guns. His work on the massacre led to establishment of the Scientific Crime Detection Laboratory at Northwestern. A sidenote, Major Goddard was later promoted to Colonel in the Army and went by Colonel Goddard in the 1930s.

A coroner and Major Goddard (Colonel Calvin Hooker Goddard) look over Thompson submachine guns on April 20, 1929. The guns were believed to have been used in the Clark Street St. Valentine's Day massacre. Goddard established that Tommy guns were used in the massacre and that they were not police Tommy guns. His work on the massacre led to establishment of the Scientific Crime Detection Laboratory at Northwestern. A sidenote, Major Goddard was later promoted to Colonel in the Army and went by Colonel Goddard in the 1930s.